Long before the rise of amazon, as a serious photographer, I'd been buying camera gear via mail order, especially from B&H in NYC. So having products shipped was nothing new.
Funny thing is, many of us have been using Amazon since before 2005 when smartphones arose because we were accessing the Internet via desktops and laptops. However many people before 2005 only had those computers at their workplaces and each time their job changed they would disappear haha. Many of the rest of you late comers to online retail are of course from after that post smartphone rise era with many avoiding amazon simply due to primitive computer skills or negative tech attitudes of having to change old habits in this new day.
The first decade 1994 to 2005 Amazon was just books and some computer gear. It took a huge bite from brick and mortar Barnes & Noble. By time smartphones arose, even though other corps noticed what a huge advantage amazon had with books, only amazon through technical Internet experience had figured out how to make that work opening doors to a wide range of products. Older brick and mortar retailers were too full of themselves with short term profit myopia to see their demise was approaching. Huge was the ability to read product reviews, the vastly larger range of choices for each type of product from national and then global sources, and the fact that competition for each specific product type, naturally caused competitive price reductions.
Note, I don't have nor need a Prime account and almost always order when the total cost is above the free shipping threshold. So that tends to mean more expensive products that I just can't conveniently locally slap a $20 Andrew Jackson down on.